RE: Does Kinetic Energy = Penetration?
The 2X4 has a lot more energy and momentum to help it overcome wind resistance. Assuming both the board and the pine needle maintained stable, end-on flight, the board would go on a good long way while the pine needle would lose speed very fast and drop to the ground.
That is why I disagree that the (reasonably) heavy arrow would lose a proportionally greater amount of it's speed and energy than a light arrow. If you've found otherwise, Silentassassin, then other factors are coming into play.
Edited by - Arthur P on 08/23/2002 09:29:40